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Finding the Fourth Proportional to 373,605.21, 514,972.89 and 252,702.38

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Solution

The fourth proportional to 373,605.21, 514,972.89 and 252,702.38 is: 348,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,605.21 : 514,972.89 = 252,702.38 : x
  2. Step 2: Convert to fraction form
    373,605.21/514,972.89 = 252,702.38/x
  3. Step 3: Cross multiply
    373,605.21x = 514,972.89 × 252,702.38
  4. Step 4: Simplify right side
    373,605.21x = 130,134,876,225.91
  5. Step 5: Solve for x
    x = 130,134,876,225.91/373,605.21
  6. Step 6: Final answer
    x = 348,321.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.